/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.libudf.it.dprofile;

import org.apache.iotdb.it.env.ConfigFactory;
import org.apache.iotdb.it.env.EnvFactory;
import org.apache.iotdb.it.framework.IoTDBTestRunner;
import org.apache.iotdb.itbase.category.LocalStandaloneIT;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import static org.junit.Assert.fail;

@RunWith(IoTDBTestRunner.class)
@Category({LocalStandaloneIT.class})
public class DProfileIT {
    protected static final int ITERATION_TIMES = 10_000;

    @BeforeClass
    public static void setUp() throws Exception {
        ConfigFactory.getConfig()
                .setUdfCollectorMemoryBudgetInMB(5)
                .setUdfTransformerMemoryBudgetInMB(5)
                .setUdfReaderMemoryBudgetInMB(5);
        EnvFactory.getEnv().initBeforeClass();
        createTimeSeries();
        generateData();
        registerUDF();
    }

    private static void createTimeSeries() {
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            statement.addBatch("create database root.vehicle");
            statement.addBatch(
                    "create timeseries root.vehicle.d1.s1 with "
                            + "datatype=int32, "
                            + "encoding=plain, "
                            + "compression=uncompressed");
            statement.addBatch(
                    "create timeseries root.vehicle.d1.s2 with "
                            + "datatype=int64, "
                            + "encoding=plain, "
                            + "compression=uncompressed");
            statement.addBatch(
                    "create timeseries root.vehicle.d2.s1 with "
                            + "datatype=float, "
                            + "encoding=plain, "
                            + "compression=uncompressed");
            statement.addBatch(
                    "create timeseries root.vehicle.d2.s2 with "
                            + "datatype=double, "
                            + "encoding=plain, "
                            + "compression=uncompressed");
            statement.executeBatch();
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    private static void generateData() {
        double x = -100d, y = 100d; // borders of random value
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            for (int i = 1; i <= ITERATION_TIMES; ++i) {
                statement.execute(
                        String.format(
                                "insert into root.vehicle.d1(timestamp,s1,s2) values(%d,%d,%d)",
                                i * 1000,
                                (int) Math.floor(x + Math.random() * y % (y - x + 1)),
                                (int) Math.floor(x + Math.random() * y % (y - x + 1))));
                statement.execute(
                        (String.format(
                                "insert into root.vehicle.d2(timestamp,s1,s2) values(%d,%f,%f)",
                                i * 1000,
                                x + Math.random() * y % (y - x + 1),
                                x + Math.random() * y % (y - x + 1))));
            }
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    private static void registerUDF() {
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            statement.execute(
                    "create function distinct as 'org.apache.iotdb.library.dprofile.UDTFDistinct'");
            statement.execute(
                    "create function histogram as 'org.apache.iotdb.library.dprofile.UDTFHistogram'");
            statement.execute(
                    "create function integral as 'org.apache.iotdb.library.dprofile.UDAFIntegral'");
            statement.execute(
                    "create function integralavg as 'org.apache.iotdb.library.dprofile.UDAFIntegralAvg'");
            statement.execute("create function mad as 'org.apache.iotdb.library.dprofile.UDAFMad'");
            statement.execute("create function median as 'org.apache.iotdb.library.dprofile.UDAFMedian'");
            statement.execute("create function mode as 'org.apache.iotdb.library.dprofile.UDAFMode'");
            statement.execute(
                    "create function percentile as 'org.apache.iotdb.library.dprofile.UDAFPercentile'");
            statement.execute("create function period as 'org.apache.iotdb.library.dprofile.UDAFPeriod'");
            statement.execute("create function qlb as 'org.apache.iotdb.library.dprofile.UDTFQLB'");
            statement.execute(
                    "create function resample as 'org.apache.iotdb.library.dprofile.UDTFResample'");
            statement.execute("create function sample as 'org.apache.iotdb.library.dprofile.UDTFSample'");
            statement.execute(
                    "create function segment as 'org.apache.iotdb.library.dprofile.UDTFSegment'");
            statement.execute("create function skew as 'org.apache.iotdb.library.dprofile.UDAFSkew'");
            statement.execute("create function spread as 'org.apache.iotdb.library.dprofile.UDAFSpread'");
            statement.execute("create function stddev as 'org.apache.iotdb.library.dprofile.UDAFStddev'");
            statement.execute("create function minmax as 'org.apache.iotdb.library.dprofile.UDTFMinMax'");
            statement.execute("create function zscore as 'org.apache.iotdb.library.dprofile.UDTFZScore'");
            statement.execute("create function spline as 'org.apache.iotdb.library.dprofile.UDTFSpline'");
            statement.execute("create function mvavg as 'org.apache.iotdb.library.dprofile.UDTFMvAvg'");
            statement.execute("create function acf as 'org.apache.iotdb.library.dprofile.UDTFACF'");
            statement.execute("create function pacf as 'org.apache.iotdb.library.dprofile.UDTFPACF'");
            statement.execute(
                    "create function consistency as 'org.apache.iotdb.library.dquality.UDTFConsistency'");
            statement.execute(
                    "create function timeliness as 'org.apache.iotdb.library.dquality.UDTFTimeliness'");
            statement.execute(
                    "create function completeness as 'org.apache.iotdb.library.dquality.UDTFCompleteness'");
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @AfterClass
    public static void tearDown() throws Exception {
        EnvFactory.getEnv().cleanAfterClass();
    }

    @Test
    public void testIntegral1() {
        String sqlStr = "select integral(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testIntegral2() {
        String sqlStr = "select completeness(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testIntegralAvg1() {
        String sqlStr = "select integralavg(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testIntegralAvg2() {
        String sqlStr = "select integralavg(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Ignore // TODO: This test case failed, please check the function implementation
    @Test
    public void testMad1() {
        String sqlStr = "select mad(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMad2() {
        String sqlStr = "select timeliness(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMedian1() {
        String sqlStr = "select median(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMedian2() {
        String sqlStr = "select median(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMode1() {
        String sqlStr = "select consistency(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testPercentile1() {
        String sqlStr = "select percentile(d1.s2,'rank'='0.7') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testPercentile2() {
        String sqlStr = "select percentile(d2.s2,'rank'='0.3') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testPeriod1() {
        String sqlStr = "select period(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSkew1() {
        String sqlStr = "select skew(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSkew2() {
        String sqlStr = "select skew(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSpread1() {
        String sqlStr = "select spread(d1.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSpread2() {
        String sqlStr = "select spread(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSddev1() {
        String sqlStr = "select stddev(d1.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testStddev2() {
        String sqlStr = "select stddev(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
            resultSet.next();
            Object result = resultSet.getObject(2);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testACF1() {
        String sqlStr = "select acf(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testDistinct1() {
        String sqlStr = "select distinct(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testHistogram1() {
        String sqlStr =
                String.format(
                        "select histogram(d1.s1,'min'='%f','max'='%f','count'='20') from root.vehicle",
                        -100d, 100d);
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMinMax1() {
        String sqlStr =
                String.format("select minmax(d2.s2,'min'='%f','max'='%f') from root.vehicle", -100d, 100d);
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMvAvg1() {
        String sqlStr = "select mvavg(d1.s1) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testMvAvg2() {
        String sqlStr = "select mvavg(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testPACF1() {
        String sqlStr = "select pacf(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testQLB1() {
        String sqlStr = "select qlb(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testResample1() {
        String sqlStr = "select resample(d2.s1, 'every'='5s') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testResample2() {
        String sqlStr = "select resample(d2.s2, 'every'='10s', 'aggr'='median') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Ignore // TODO: This test case failed, please check the function implementation
    @Test
    public void testSample1() {
        String sqlStr = "select resample(d2.s1, 'method'='reservoir','k'='5') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Ignore // TODO: This test case failed, please check the function implementation
    @Test
    public void testsample2() {
        String sqlStr = "select resample(d1.s2, 'method'='isometric','k'='5') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testsample3() {
        String sqlStr = "select sample(d1.s2, 'method'='triangle','k'='5') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSegment1() {
        String sqlStr = "select segment(d2.s2,'error'='10') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testSpline1() {
        String sqlStr = "select spline(d2.s1, 'points'='100') from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testZScore1() {
        String sqlStr = "select zscore(d1.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }

    @Test
    public void testZScore2() {
        String sqlStr = "select zscore(d2.s2) from root.vehicle";
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            ResultSet resultSet = statement.executeQuery(sqlStr);
        } catch (SQLException throwable) {
            fail(throwable.getMessage());
        }
    }
}
